• DocumentCode
    1670847
  • Title

    On-line determination of reduced-order models of linear systems via the moving discrete Fourier transform (MDFT)

  • Author

    Lilly, John H.

  • Author_Institution
    Dept. of Electr. Eng., Louisville Univ., KY, USA
  • fYear
    1989
  • Firstpage
    1796
  • Abstract
    A method for online determination of reduced-order models (ROM) of stable linear systems is presented. The identification method utilizes the moving discrete Fourier transform (MDFT) to monitor continuously the frequency-domain profile of the system input and output. The input and output MDFTs are used to determine the effect of the system on n (for an nth-order ROM) sinusoidal components in these signals, although the plant input and output need not actually be sinusoidal. The MDFT is computationally more efficient than standard FFT algorithms, when the DFT of an evolving time signal is desired
  • Keywords
    Fourier transforms; control system analysis; identification; linear systems; frequency-domain profile; identification method; linear systems; moving discrete Fourier transform; online determination; reduced-order models; stable systems; system input; system output; Adaptive control; Discrete Fourier transforms; Fourier transforms; Frequency; Linear systems; Monitoring; Polynomials; Read only memory; Reduced order systems; Transfer functions;
  • fLanguage
    English
  • Publisher
    ieee
  • Conference_Titel
    Circuits and Systems, 1989., IEEE International Symposium on
  • Conference_Location
    Portland, OR
  • Type

    conf

  • DOI
    10.1109/ISCAS.1989.100715
  • Filename
    100715
    • Link To Document
    https://search.isc.ac/dl/search/defaultta.aspx?DTC=49&DC=1670847